Wiee swaging machine



(No Model.) 2 Sheets--Sheet 1. L. 000K. WIRE SWAGING MAGHINE.

N0. 604,604. Patented May 2.4, 1898.

llnrrnn Sra'rns PATENT Orrrcn,

LEROY COOK, OF WVORCESTER, MASSACHUSETTS, ASSIGNOR TO THE \VASH- BURN d5MOEN MANUFACTURING COMPANY, OF SAME PLACE.

W|RE-SWAGlNG MACHENE,

SPECIFICATION forming part of Letters Patent No. 604,604, dated May 24,1898. Application filed July 6,1896- Serial No. 598,096. (No model.)

To aZZ whom, it may concern.-

Be it known that I, LEROY COOK, a citizen of the United States, residingat Worcester, in the county of Worcester and State of Massachusetts,have invented a new and useful Improvement in WVire Swaging Machines, ofwhich the following is a specification, accompanied by drawings forminga part of the same, in which Figure 1 represents a front view of aswaging-machine embodying my invention. Fig. 2 is a front view of thesame with the front plate removed in order to disclose the operativemechanism; and Fig. 3 is a horizontal sectional view on line 3 3, Fig.1.

Similar letters refer to similar different figures.

The object of my invention is to'provide a wire-swaging machineforswaging bicyclespokes, needles, and similar articles which shall besimple and inexpensive in construction and by which the operative partsof the machine shall be relieved of the injurious strains incidentto thewire-swaging machines now 111 use.

Referring to the drawings, A denotes the framework of the machine, whichconsists of a shell or case A, preferably cast in a single piece andhaving its front side closed by a detachable plate A, secured to thecase by bolts A and inclosing a chamber A Journaled in the framework ofthe machine is a shaft 13, carrying the belt-pulley B, by which it isrotated. Attached to the shaft B and inclosed within the chamber A is acam-wheel 13 having a series of projections B on its periphery. Thecam-wheel B is rotated in the direction of the arrow B and theprojections 13 are successively brought into contact with a roll 0,journaled in one end of a lever C, which is pivoted at its opposite endupon a spindle C The spindle C is journaled in the frame of the machinewith its axis eccentric to the axis of the lever C, and is provided witha leverhandle C attached to its outer end and capable of swingingthrough a limited are along a curved guide-plate G which is providedwith holes at each end of the movement of the lever to receive alocking-pin 0*.

parts in the The pin 0 is held in the end of a lever G which is pivotedin lugs C projecting from the handle C and it is actuated bya spring Cto carry the pin C into the holes inthe guideplate C and lock thelever-handle at each end of its movement,

The lever C is connected with a pressureplate D by a cylindrical pin D,extending transversely to the lever C and plate D and engagingsemicircular recesses formed therein and'in a horizontal plane betweenthe axis of the roll C and the axis of the'lever C. The pressure-plate Dbears against the side of a sliding block E, sliding in ways formed inthe frame of the machine and held in contact with the pressure-plate bymeans of spiral springs E E. The lever C, which is of the second class,having the fulcrum at one end and the power applied at the other end,with the work applied between the ends and on the side opposite thepower, hangs from its fulcrum in a vertical plane midway between theperiphery of the cam 13 and the pressureblock D, so that the weight ofthe lever offers a minimum resistance to the action of the cam inclosing the dies and also to the tension of the springs by which thedies are opened and the lever reversed. The pressure-plate D is capableof a slight vertically-sliding movement in the side of the horizontally-8o sliding die-block E in order to allow for the movement of the roll Din the arc of a circle which is concentric with the spindle C Thesliding block E is recessed at E to receive a pair of swaging-dies E E,which are pressed together by being crowded against a vertical side E ofthe block E by the sliding motion of the block E, as actuated by thelever C and cam-wheel13 A thimbleFis held in the plate A, having afunnel-shaped hole F in alinement with the openings between the dies EE4. The wire to be swaged is conducted to the dies through the hole Fand passes between the dies and a hole F formed in the frame of themachine.

When the machine is in operation, the handle C is brought intohorizontal position, as represented in Fig. 1, thereby rotating thespindle C in its bearings to carry the axis of the pivoted lever Ctoward the dies, so the action of the cam-wheel B will bring the dies Eand E together and compress the wire inserted between them.

When it becomes necessary tointerrupt the swaging action of the diesthe'handle C is raised through the arc G into the position indicated bythe broken line G, thereby rocking the spindle 0 so as to move thefulcrum of the lever O away from the swaging-dies, and at the same timebringing the lever 0 against the stop-pin H, held in the frame of themachine. hen the upper end of the lever 0 is moved away from theswaging-dies by the rocking of the eccentric spindle 0 carrying thelever against the pin H, the pin H will act as a fulcrum and serve tomove the lower end of the lever O away from the cam-wheel l3 far enoughto carry the roll 0 out of the path of the projections 13 so the lever Gwill not be actuated by the rotation of the cam-wheel B The movement ofthe upper end of the lever C away from the dies permits the springs E toact against the sliding plate E and allow the separation of theswaging-dies. The only rotating part of the machine consists of theshaft B and camwheel B driven by the belt-pulley B. The pressure uponthe swaging-dies is applied upon one side only and is received againstthe vertical wall E, forming a part of the solid framework of themachine.

A single lever O is sufficient to compress the dies, and the cam-wheel13 with its projections B can be formed in a single piece, and duringthe period of compression of the wire between the dies the strain uponthe cam-wheel is received directlyin the plane of its axis.

The block E is held in the Ways containing the sliding plate E, and itrests against the points of adj Listing-screws J, held in the frameworkof the machine, by which the position of the blockE can be adjusted inorder to bring the swaging-die E into proper position. The block E ispreferably made heavy to provide inertia to resist the blows upon theswaging-dies. If desired, the adj ustable block E can be omitted and theswaging-die E be made to rest against the framework of the machine; butthe adjustability of the block E obviates the necessity of the accuratefitting and adjustment of the operative parts of the machine.

I do not confine myself to the employment of the screws J to adjust theblock E, as other obvious and well-known means can be employed for thatpurposesuch, for example, as a sliding Wedge inserted between theframework and the block Eor other known of said dies, a pivoted leveroperatively connected with said sliding block, a cam-wheel by which saidlever is actuated to compress said dies, means for shifting the fulcrumof said lever and a stop-pin against which said lever is moved by theshifting of its fulcrum, whereby said lever is carried out of engagementwith said cam-wheel, substantially as described.

2. The combination with a pair of swagingdies of a lever pivoted at itsupper end and hanging by gravity in a vertical plane between said diesand an actuating cam-wheel, a cam-wheel arranged to act against thelower end of said lever, means for operatively connectin g said leverwith one of said dies on the side opposite said cam-wheel and betweenthe cam-wheel and the pivoted end of the lever, and means for moving thepivoted end of said lever away from said dies, substantially asdescribed.

3. The combination with a fixed and movable swaging-die, of a pivotedlever operatively connected with said movable die, a camwheel by whichsaid lever is actuated, means for shifting the fulcrum of said lever anda stop-pin against which said lever is moved by the shifting of saidfulcru m, substantially as described.

4. The combination with a fixed and a movable die, of a sliding blockbearing against said movable die and a pressure-plate capable of asliding movement at right angles to the movement of said sliding block,a pivoted lever operatively connected with said pressure-plate, and arotating cam-wheel by which said lever is actuated, substantially asdescribed.

5. The combination with a pair of swaging- I dies of a sliding blockbearing against one of said dies, a pressure-plate bearing against theside of said sliding block and capable of a slight sliding movementthereon at right angles to the movement of said sliding block andprovided with a semicircular recess, a pivoted lever having asemicircular recess opposite the recess in said pressure-plate, acylindrical pin fitting said recess whereby said lever is operativelyconnected with said pressure-plate and a rotating cam-wheel by whichsaid lever is actuated, substantially as described.

6. The combination ,of a pair of swagingdies, a sliding block bearingagainst said dies to compress the same, a lever operatively connectedwith said sliding block and pivoted at one end upon arotating spindle, arotating spindle carrying said lever and journaled eccentrically in theframe of the machine, a cam-wheel arranged to act against the free endof said lever, a handle attached to said eccentric spindle, and meansfor determining the angular movement of said handle, substantially asdescribed.

7. The combination with a pair of swagingdies, of a lever pivoted at oneend and operatively connected with one of said dies, a

rotating cam-wheel for actuating said lever to close said dies, meansfor simultaneously moving the pivoted end of said lever away from saiddies and its opposite end away from said cam-wheel, whereby said leveris rendered inoperative on said dies and at the same time moved out ofengagement with said cam- Wheel, substantially as described.

8. The combination with a pair of swagingdies, of a sliding block, E, apressure-plate D bearing against said sliding block and capable of aslight movement thereon, and provided with a semicircular recess, alever O pivoted at its upper end upon a rotatable eccentric spindlejournaled in the frame of the LEROY COOK.

\Vitnesses:

RUFUs B. FOWLER, LENA KESTER.

